<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 输入框 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
          >>
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
          <el-button
            type="primary"
            @click="addVisible=true"
          >添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table
        :data="userList"
        border
        stripe
        style="width: 100%"
      >
        <el-table-column type="index">
        </el-table-column>
        <el-table-column
          prop="username"
          label="姓名"
        >
        </el-table-column>
        <el-table-column
          prop="email"
          label="邮箱"
        >
        </el-table-column>
        <el-table-column
          prop="mobile"
          label="电话"
        >
        </el-table-column>
        <el-table-column
          prop="role_name"
          label="角色"
        >
        </el-table-column>
        <el-table-column
          prop="mg_state"
          label="状态"
        >
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column
          label="操作"
          width="180px"
        >
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deletUser(scope.row.id)"
            ></el-button>
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addVisible"
      width="50%"
      @close="addDialogClose"
      ref="addDialog"
    >
      <el-form
        :model="ruleForm"
        :rules="userRules"
        ref="ruleFormRef"
        label-width="100px"
        class="demo-ruleForm"
      >
        <el-form-item
          label="用户名"
          prop="username"
        >
          <el-input v-model="ruleForm.username"></el-input>
        </el-form-item>
        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="ruleForm.password"></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
        >
          <el-input v-model="ruleForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机"
          prop="mobile"
        >
          <el-input v-model="ruleForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="addVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="addUser"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editVisible"
      width="30%"
      ref="editDialog"
      @close="editFormClose"
    >
      <el-form
        :model="editForm"
        :rules="editFormRule"
        ref="editForm"
        label-width="100px"
      >
        <el-form-item label="用户名称">
          <el-input
            v-model="editForm.username"
            disabled
          ></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱名称"
          prop="email"
        >
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item
          label="手机号码"
          prop="mobile"
        >
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="editVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="editUser"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
    >
      <p>当前的用户: {{ userInfo.username }}</p>
      <p>当前的角色: {{ userInfo.role_name }}</p>
      <p>分配新角色: <el-select
          v-model="selectedId"
          placeholder="请选择"
        >
          <el-option
            v-for="item in roleList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </p>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="saveSetRole"
        >确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 显示添加用户对话框
      addVisible: false,
      ruleForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 显示修改用户
      editVisible: false,
      // 用户信息
      editForm: {},
      // 添加用户的验证规则
      userRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱名称', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改用户的验证规则
      editFormRule: {
        email: [
          { required: true, message: '请输入邮箱名称', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 显示分配角色对话框
      setRoleDialogVisible: false,
      // 当前用户和角色
      userInfo: {
        // 当前用户
        // currentUser: '',
        // 当前角色
        // currentRole: ''
      },
      // 所有角色列表
      roleList: [],
      // 选中的id
      selectedId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange(newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    async userStateChanged(userInfo) {
      // console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      console.log(res)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听对话框关闭事件
    addDialogClose() {
      this.$refs.ruleFormRef.resetFields()
    },
    // 添加用户
    addUser() {
      this.$refs.ruleFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.ruleForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 关闭对话框
        this.addVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 显示修改用户对话框
    async showEditDialog(id) {
      // const { data: res } = await this.$http.get('users/' + id)
      this.editVisible = true
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('查询用户失败')
      this.editForm = res.data
      console.log(this.editForm)
      // this.editVisible = false
    },
    // 监听修改用户对话框关闭事件
    editFormClose() {
      this.$refs.editForm.resetFields()
    },
    // 提交修改用户
    editUser() {
      this.$refs.editForm.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, this.editForm)
        if (res.meta.status !== 200) return this.$message.error('修改用户失败')
        this.$message.success('修改用户成功')
        this.editVisible = false
        this.getUserList()
      })
    },
    // 删除用户操作
    async deletUser(id) {
      const resultStr = await this.$confirm('此操作将删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      if (resultStr !== 'confirm') return this.$message.info('取消删除用户')

      // console.log(resultStr)
      const { data: res } = await this.$http.delete(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 分配用户角色
    async setRole(row) {
      this.userInfo = row
      // console.log(this.userInfo)
      // 获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色失败')
      }
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    // 保存用户分配角色
    async saveSetRole() {
      // console.log(this.userInfo.id)
      if (!this.selectedId) {
        return this.$message.error('请选择需要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedId
      })
      if (res.meta.status !== 200) {
        return this.$message.error('分配角色失败')
      }
      this.$message.success('分配角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>
<style lang="less" scoped>
</style>
